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    Subject[tip:bkl/arch] s390: Remove BKL from prng
    Commit-ID:  ca1b82ba0888e742a7efdb89ed8e2aab453e091f
    Gitweb: http://git.kernel.org/tip/ca1b82ba0888e742a7efdb89ed8e2aab453e091f
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Sat, 10 Oct 2009 10:21:03 +0200
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitDate: Wed, 14 Oct 2009 15:35:50 +0200

    s390: Remove BKL from prng

    cycle_kernel_lock() was added during the big BKL pushdown. It should
    ensure the serializiation against driver init code. In this case there
    is nothing to serialize. Remove it.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    LKML-Reference: <20091010153349.601625576@linutronix.de>
    Acked-by: Jan Glauber <jang@linux.vnet.ibm.com>

    ---
    arch/s390/crypto/prng.c | 2 --
    1 files changed, 0 insertions(+), 2 deletions(-)

    diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
    index b49c00c..a320990 100644
    --- a/arch/s390/crypto/prng.c
    +++ b/arch/s390/crypto/prng.c
    @@ -6,7 +6,6 @@
    #include <linux/fs.h>
    #include <linux/init.h>
    #include <linux/kernel.h>
    -#include <linux/smp_lock.h>
    #include <linux/miscdevice.h>
    #include <linux/module.h>
    #include <linux/moduleparam.h>
    @@ -49,7 +48,6 @@ static unsigned char parm_block[32] = {

    static int prng_open(struct inode *inode, struct file *file)
    {
    - cycle_kernel_lock();
    return nonseekable_open(inode, file);
    }


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